<script setup>
import { inject } from "vue";

const themeColor = inject('theme-color')
const count = inject('count')
const changeCount = inject('changeCount')

const clickFn = () => {
    changeCount(1000)
}
</script>

<template>
    <div>
        <h3>我是底层组件 - {{themeColor}} - {{count}}</h3>
        <button  @click="clickFn">更新count</button>
    </div>    
</template>